Flekki vs PostBrix
Flekki
flekki.comPostBrix
postbrix.comSide by side
| Figure | Flekki | PostBrix |
|---|---|---|
| Price from | Free | $9/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 8 |
| Spec score · Email Design Software | 7.5 (#33) | 8.5 (#8) |
| HTML export | Users can export production-ready responsive HTML for email clients including Gmail, Outlook, and Apple Mail. | Designs can be exported as production-ready, fully inlined HTML suitable for external email platforms. |
| Integrations | Exported HTML is described as ready for any email platform. | Export guidance covers Mailchimp, SendGrid, Klaviyo, Brevo, HubSpot, Postmark, Customer.io, ActiveCampaign and Mailgun, plus Amazon SES compatibility on the homepage. |
| Product | Flekki is a free, open-source drag-and-drop HTML email editor for designing responsive templates and exporting HTML. | PostBrix is a browser-based email builder for creating responsive email templates and managing campaign-ready assets. |
Plans
PostBrix
- FreeFree
- FreeFree
- Starter$9 a month
- Starter$9 a month
- Pro$29 a month
- Pro$29 a month
- EnterprisePriced on request
- Enterprise & AgencyPriced on request
In their own words
PostBrix
PostBrix is a browser-based email builder for producing responsive templates and organizing assets for campaigns. Its visual editor lets users arrange text, images, buttons, dividers, and columns without writing HTML. Layouts are designed for mobile and desktop, and saved headers, footers, and calls to action can be reused across projects. The product can help generate or refine email copy with AI, then export templates as MJML or fully inlined HTML for an existing workflow. PostBrix says its exported code works with services that accept HTML or MJML, including Mailchimp, HubSpot, SendGrid, Brevo, Postmark, Amazon SES, Klaviyo, Customer.io, ActiveCampaign, and Mailgun. The documentation also describes REST API rendering and key management, live previews, test emails, responsive checks, and rendering troubleshooting. A free plan and free trial are available; paid plans start at $9/mo. The free tier is limited to five monthly exports, five daily downloads, three daily test emails, and ten lifetime AI generations.